Paper-bag press



J- W. TAGGART.

PAPER BAG PRESS.

APPLICATION FILED SEPT-26,1921.

L ifiQAQSO m- .17, 1922,

2 SHEETS-SHEET l.

J. W.' TAGGART.

PAPER BAG PRESS.

APPLICATION FILED SEPT-26,1921.

Patent ed; Oct. 17, 1922,

LQSQAQED 2 SHEETS-SHEET 2.

Patented @eto "ll 7, 11922.;

. unif es. stares p i,,nr,,nt retest orator.-

JTQSEIPJEI W. TAG-GMT, F WATERTOWN, NEW YQLtK, ASSIGNQR 'E'G TAGGART BRQTHERS eorrrnn'r, 01E WATEREQWN, NEW YORK, A COEEQRATIQNDF NEW YUM.

earns-nae rnnss;

Application and septemtzer at, rear. semi in. 503,372.

To all whom it may concern:

Be it known that l, dosnrn W. TAGGA'RT,-

a citizen of the United States, residing at Watertown, in the county of Jefi'erson and State of New York, have invented certain new and useful Improvements in Paper-Bag Presses, of which the following is aspecification.

This invention relates to a press, designed for use in connection with the ending machines employed in paper bag manufacture, and has for its object to provide novel, simple and 'efi'ective. means for applying pressure to the newly pasted bags after they are ejected from the ending machines v the arrangement of the press being such that the bags are subjected to the pressure for several minutes while the paste is drying. A further object is to provide a device of the class which is operatively connected to the ending machine and has a plurality of registering press rolls which co-operate with belts for successively gripping and pressing the bags as they are carried through the de- 25 vice, certain of'the rolls being self-adjusting and exerting ressure proportion to their weight entire y by gravity. A further oh ject is to provide novel and simple means for effecting the successive overlapping of the freshly pasted bags in close arrangement for prolonging their travel throu h the press, and for rotating the several rols stepby-step corresponding to the spacing of the bags. And a further object is to provide novel and convenient means for manually operating the belts for ejecting the bags that remain in the press after the ending machine has ceased its operation.

I attain these objects by the means set forth in the detailed description which follows and as illustrated by the accompanying drawings, in which-- Figure l is a side elevation of the complete machine showing the same in the act of pressing a large number of freshly pasted bags. Fig. 2 is an enlarged fragmentary side view taken between the broken lines 2-2 of Fig.

Y 1. Fig. 3 is respectively a face and an edge view of one of the bags. Fig. t is a top plan view of the press, in which certain of the belts are broken away for showing the disposition and arrangement of the gravitative and other press rolls. And Figs. 5, 6 and 7 are similar attached views of the larger and sinaller gravitative rolls.

" In the drawings, 2 represents the side rails of the main frame which are tied together by cross-rails 2', and are also supported by legs 2*- -2f, preferably of difierent lengths for. mclmln the machine. 33 represent similar but ighter side rails of a superimposed frame, which are rigidly mounted on and spaced above the rails 2 by a number of short legs 3'; The bag-ending machine is not shown, but the lowermost end of the pressus preferably placed-adjacent the. said mach ne, so that the freshly pasted bags, as they leave the ending machine, may readily gravitate into and down a receivingv chute 55 which is supported by the top frame 3-3. As the bags 4: are ejected from the ending machine, their freshly pasted bottom ends face the press, and upon reaching the bottom of the chute 5, land upon a broad carrier belt t5, which is operatively supported by a relatively broad face pulley at each end of the press. These pulleys 6 andiri are mounted on shafts 6 and 6 which are journaled in bearings carried by the rails 2 -2. The relatively long span of the top portion of the belt 6 between the pulleys 6 and 6 is preferably ugpported by a plurality of idler rollers 6 ich are journaled in bearings 6 carried by the rails 2+2. The shaft 6 of the pulley 6 supports a spur-gear (i which meshes with and is driven by a similar gear 7 mounted upon and operated by a shaft '7. The op posits end of shaft 7 supports ratchetgear 7* and a hand wheel 7. The shaft 7 is rotated step-by-step for correspondingly joggingthe belt 6 by a pawl 7, which is carried by a depending lever 7 the latter being pivotally supported by the shaft 2 8 represents a similar depending lever which is pivoted at to one of the rails 2 near the front end of the press. The levers 7 and 8 are correspondingly perforated for adjustably connecting a link 8*. @nc end of an actuating rod 8 also connects to lever 8, the opposite end of said rod being operatively connected to parts of theending lot the chute 5 toward the belt 6, the rods 8 -8 are moved longitudinally for rocking the levers 7 8 from the full to. the dotted line positions shown in Fig- 1, and then back to the full line position. This rotates the ratchet the space of one tooth, and correspondingly moves the belt 6 away from the chute 5 for carrying forward another bag 4 towards the pressing osition, and so on.

In order to prevent t e several folds of the relatively thick and stiff paper comprising the closed ends of the bags 4: from springing apart and breaking the seal after being pasted, it is necessary to subject the said ends to a sustained pressure for several minutes, while the paste or glue is setting and drying. This is accomplished in the present devlce in a novel and effective. manner, as follows: 10 represents a relatively large and heavy press roll, of the nature of a pulley, which is mounted substantially directly above the ulley 6', and is movable therefrom vertica ly sufiiciently to allow a relatively thick la er of the overlapping bags 4' to be disposed [between the said pulleys (see Fig. 1). The roll 10, and a similar roll 11 disposed in like manner above the pulley 6, carry a pressure belt 10, which with the belt 6 form the path or course for the travel of the bags 4 through thefp-ress. The roll 10 is mounted on a shaft 10*, which is journaled in the corresponding ends of a air of arms 10", the opposite ends of sai arms being pivotally mounted by a shaft 10 in similar bearings 10 which are carried by the top edges of the frame 33. By this construction and arrangement the roll 10 is free to gravitate towards the pulley 6 and to exert its weight and pressure upon the overlapped layer of bags 4 (see Fig. 1), and efiects the initial pressure upon said bags. The roller 10 is relatively large in diameter, and the bags 4: readily enter between said roller and the belt 6, and a positive purchase or grip is efi'ected which prevents the bags from shifting, or varyin and spacing, w 'ch is necessary for producing an even and positive'pressure upon the freshly pasted ends. In order to aid in effecting the regular and relatively close spacing of the bags 4, as they areautomatically fed into the pressing machine, I provide a guard or stop, whlch ma comprise a sheet of metal 12, whose curv lower end is free and extends into the crotch of the roll 10 and the pulley 6', while its upper end is-rigidly supported by a ores-bar 12, which is mounted on the top edges of the chute 5. Increasing or decreasing the curvature, as well as chan ing the angularity of the guard 12 from t 'at shown in Fig. 1, correspondingly varies the spacing of the bags 4. The roller 11 is mounted on a shaft 11' which isjournaled in the corresponding from their regular course measles ends of similar arms 11, the latter-being pivotally supported-by a shaft or rod 11 having bearings in blocks 11, which are also mounted on the frame 33. The roller 11, which efi'ects the final pressure on the bags 4, is preferably positioned slightly to the rear of the vertical axis of the pulley 6, and tends to depress the emerging layer t for directing the individual bags into atrough or chute '5, which collects and holds t e bags until the operator removes them. The relatively ion and 11 is provided with a number of secondary and smaller and heavier pm rolls 13, which also exert their pressure by gravity. The rolls 13 are mounted on shafts 13' which are journaled in the corresponding ends of supporting arms 13*, whose opposite ends are pivoted to the rails 33 by rods 13*, as best seen inFigs. 1 and 4. The rolls 13 are disposed substantially in the line of the vertical axis of the idlers 6 and exert their pressure on the lowermost section of belt 10 which rests upon the top faces of the bags 4. The frequency of the rolls 13 and 6 insures the constant and even pressure on the belt 10' and on the bags 4 while the latter .are being-slowly span between the rolls 10 jogged through the intermediate portion of Having thus described my invention,

what I claim as new and desire to secure by Letters Patent, isl 1. A paper-bag press, including an inclined frame, an inclined bag-carryin belt mounted in the frame, a pressure be t arranged parallel to and spaced above the carrying belt, a plurality of gravitative pressrolls disposed within the pressure belt and exerting constant pressure upon the articles sup-ported by the carryi belt, and means for intermittently operating both of said belts. I

2. A paper-bag press, comprising an inclined belt adapted to carry a continuously forming layer of bags, a pair of pulleys for supporting and operating said belt, means for rotating said pulleys step-by-step corresponding to the feeding ofthe b into the press, an inclined pressure belt disposed above and parallel to the other belt, gravi- I clined belt adapted for carrying a continu- 'ously forming layer of bags, a pair of pulleys for crating said belt, means for allel to and spaced above said carrier belt, a

plurality of gravitative press-rolls disposed within the pressure belt and exerting constant pressure towards the bags and carrying belt, and a mechanism for simultane- I ously operating said belts step-by-step for prolonging and repeating the compression of the freshly pasted bags.

5. A paper bag press, including an incline frame, similar spaced pulleys journaled in the frame, a belt operatively connecting said pulleys and inclined. like the frame adapted to carry a layer of overlapped bags throu h 'the press by intermittent stages, means or rotating said pulleys step-by-step, a pressure belt disposed above and parallel to the first belt and normally spaced therefrom, said pressure belt adapted to. be'driven by trictional contact with the layer of bags, and a plurality of prem-rolls exerting their weight by gravity upon the pressure belt for presslipgthe layer of bags against the lowermost 6. A paper-bag press, including an incline frame, similar spaced pulleys journaled in the frame, a belt operatively connecting said pulleys and inclined like the frame adapted to carry a layer of bags through the press by intermittent stages, means tor rotating said pulleys step-bystep for jogging the layer of bags, a pressure belt disposed above and parallel to the first belt and normally of bags.

spaced therefrom, a pair of spaced graintative pulle s supporting and actuating sald pressure be t, and a plurality of gravitatlve 'prem rolls interposed between the avitative pulleys and exerting their weigt upon said pressure belt for compremi the layer 7. In a bag pressing device, an inclined frame, pulleys ournaled near the opposite ends of the frame,gefars for operating said pulleys step-by-step, a carrier belt operatively supported by said pulleys, a pluity I of idler rolls for supporting the intermediate portion of said belt, a pressure belt disposed above and parallel to the carrier belt and spaced therefrom for providing a path for a layer of bags to be carriedthrough the device, gravitative pulleys supporting said pressure belt, said pulleys and said belt being operated bythe frictional contact of the pressure belt with the layer of bags,

and a series of gravitative pr-rolls registering with the idler rolls adapted to exert pressure on the bags between the gravitative pulleys.

8. A machine for pressing freshly pasted paper bags, comprising a pair of similarly spaced inclined belts dlsposed one above the other, the lowermost belt adaptedto carry a continuously forming layer of the bagsd means for efi'ecting the overlapping an regular spacing of the bags as they are fed into the machine, means for intermittently actuating said belts for successively moving the layer of bags corresponding to their spacings, a plurality of press rolls disposedat Intervals along the incline above the layer of bags, the uppermost belt being supported by said rolls and said rolls exerting their weight for successively compressing the freshly pasted ends of the bags, and the said weight also creating sufiicient frictional contact between the uppermost belt and the layer of bags for eflecting the positive driving of said uppermost belt;

'9. A machine for pressing paper bags comprising the combinationwith an inclined frame, and a chute adapted to receive freshly pasted bags from an ending machine, of a pairof belts spaced apart to provide therebetween a path for the bags, said belts being disposed at an incline and parallel to each other, a pair of pulleys supporting the lowermost belt, a train of gears and a ratchet for positively driving said ulleys and the lowermost belt, means for e ecting the overlapping and spacing of the bags, means for actuating the ratchet for rotating the pulleys and for-moving the lowermost belt step-by-step corresponding to the spacing of the bags, a pair of gravitative pulleys for supporting the uppermost belt, a plurality of gravitative rol ers riding on the up errnost belt between the gravitative pull eys,

tional contact with the layer of bags In testimony whereofl afiix my signature.

Josnrn w, TAGGART.

the said uppermost belt and the several gravitative parts being actuated by friclltl 

